PICTURES: Allentown row homes gutted by fire

HARRY FISHER / THE MORNING CALL

Firefighters battle a dwelling fire on the 400 block of North Fulton Street in Allentown around 8:40 pm on Thursday, December 1, 2016. The fire was upgraded to three alarms. Displaced families watched from the streets as firefighters battled the blaze which was seen shooting through the roof of the structure.

Firefighters battle a dwelling fire on the 400 block of North Fulton Street in Allentown around 8:40 pm on Thursday, December 1, 2016. The fire was upgraded to three alarms. Displaced families watched from the streets as firefighters battled the blaze which was seen shooting through the roof of the structure. (HARRY FISHER / THE MORNING CALL)

Firefighters battle a dwelling fire on the 400 block of North Fulton Street in Allentown around 8:40 pm on Thursday, December 1, 2016. The fire was upgraded to three alarms. Displaced families watched from the streets as firefighters battled the blaze which was seen shooting through the roof of the structure.

Firefighters battle a dwelling fire on the 400 block of North Fulton Street in Allentown around 8:40 pm on Thursday, December 1, 2016. The fire was upgraded to three alarms. Displaced families watched from the streets as firefighters battled the blaze which was seen shooting through the roof of the structure. (HARRY FISHER / THE MORNING CALL)